I've tested some widely available items from the U.K. for stripping paint, these were the results...
1) B&Q's own paint and varnish remover (around £5?).
Works well and quickly, only need to soak models for about an hour tops. Paint comes off well and superglue turns gooey and comes off easily. May need to use something sharp to get paint off some of the small details. Also need to wash parts after.
Downside...stinks! and may burn your hand off...it's strong stuff so be careful using it. I feel that it does diminish some of the smaller details on the model.
2) Nail varnish remover (about £1 from boots/superdrug/supermarket).
I soaked my model for about 24 hours, I found that it did not work very well at all. When I attempted to scrub the paint off it was very stubborn. No effect on superglue either. I wouldn't really recommend this, but other people might have used it differently with better results. This also smells, use in a well-ventilated area.
3) Brown Dettol (£1.99 for 500ml in superdrug)
I really liked this stuff, doesn't smell too bad, and won't really damage you in any way haha. It's a thick brown liquid that I left my model in for around 12 hours. By this time I could see that some of the paint had already come off in in big pieces. I took the parts out and ran them under warm water at which point the rest of the paint just sort of slided off. There were a few layers of paint on this model so I used an old toothbrush to remove the more stubborn paint. Superglue remained hard, but could be levered off easily with something sharp.
In conclusion...dettol is definitely my winner, cheap and easy to use with good results. If you need to strip paint fast I would recommend No.1, but use with care. Honestly I will not be trying nail varnish remover again!